螺旋CT表现遮盖法及多平面重组对骨病变的诊断价值

目的：探讨螺旋ＣＴ三维（３Ｄ）表面遮盖法（ＳＳＤ）和多平面重组（ＭＰＲ）立体和多方位显示骨病变，比较与常规ＣＴ的优缺点。材料与方法：选择３０例典型病例，均经临床或手术病理证实。全部数据输入工作站进行图像处理。结果：ＳＳＤ很好地立体展现了骨病变，ＭＰＲ可从任意平面观察并能进行位置调整。结论：ＳＳＤ和ＭＰＲ在影像显示上有独特的优势，可立体或任意平面观察病变，改变了影像思维方式，有助于影像与实际解剖相结合。

Percutaneous Placement of Infusion Catheter: Technical Investigation

Objective: To observe the effects of percutaneous side holed and end fixed catheter placement on the prevention of hepatic artery occlusion (HAO) and gastric ulcer. To evaluate its clinical applications and to compare this technique with other catheter placement procedures.Materials and Methods:Side holed and end fixed catheter placement procedure was successfully performed in 104 patients with liver metastases.Results:The incidence of HAO and gastric ulcer was 5% and 3%, respectively, which were lower than that with common percutaneous catheter placement procedures, and almost as the same as that performed by surgery.Conclusion:The percutaneous side holed and end fixed catheter placement is an effective procedure in preventing HAO or gastric ulcer. As this technique carries lower incidence of HAO and gastric ulcer, it can be considered as a routine method in performing hepatic arterial chemotherapy for liver malignancies.